一个可溯源的车联网群签名批量验证协议

A Traceable Group Signature Batch Authentication Protocol for Vehicular Ad Hoc Networks

车联网是物联网的重要应用之一,对推动智能交通的发展起到了重要作用。但由于车联网的开放性,其很容易遭到各种攻击,导致车辆隐私信息的泄露与重要交通信息被篡改。因此,提出一种基于零知识证明的车联网可溯源群签名批量验证协议,以此保证车辆进行交通信息共享时数据的完整性和可靠性。车辆通过其真实身份向可信机构进行注册,可信机构为其生成一个公私钥对,并保存其真实身份以便在发现车辆违法行为或者交通事故时对车辆的真实身份进行溯源追责。进行安全分析后,该方案的匿名性、消息不可伪造性等安全性得到验证。通过实验对比,表明此方案在进行批量验证的时候能够满足高效快速的要求。

Vehicular ad hoc networks(VANETs)are an important application of the Internet of Things(IoT)and play a crucial role in the development of intelligent transportation.However,due to the open nature of VANETs,they are susceptible to various attacks,which can lead to the compromise of vehicle privacy information and tampering with important traffic data.To address these challenges,this paper proposes a zero-knowledge proof-based group signature batch authentication protocol for VANETs,enabling traceability to the source and ensuring the integrity and reliability of data shared by vehicles during traffic information exchange.Vehicles register their actual identities with a trusted authority,which generates a public-private key pair for them and stores their real identities for traceability in case of traffic violations or accidents.Security analysis proves that the proposed scheme offers anonymity,message non-enforceability,and other security properties.Experimental comparisons show that the this scheme can meet the requirements of efficient and rapid batch authentication.